.... Rock mechanics plastic potential function analysis result generalized hoek-brown rock mass GSI value int naznin sharan hoek-brown criterion flow rule selection great influence elasto-plastic analysis Selection of Flow Rule for Elasto-Plastic Analysis of the Generalized Hoek-Brown Rock...

... on the test data of five kinds of rocks, Mohr-Coulomb criterion, Hoek-Brown criterion, exponential strength criterion and Balmer cri- terion, are fitted with the aim of discussing the agreement between the predictive value of strength criteria and the test data which was evaluated by the precise description...